Trait serde_valid::validation::ValidateUniqueItems

source ·

pub trait ValidateUniqueItems {
    // Required method
    fn validate_unique_items(&self) -> Result<(), UniqueItemsError>;
}

Expand description

Uniqueness validation of the array items.

See https://json-schema.org/understanding-json-schema/reference/array.html#unique_items

use serde_json::json;
use serde_valid::{Validate, ValidateUniqueItems};

struct MyType(Vec<i32>);

impl ValidateUniqueItems for MyType {
    fn validate_unique_items(&self) -> Result<(), serde_valid::UniqueItemsError> {
        self.0.validate_unique_items()
    }
}

#[derive(Validate)]
struct TestStruct {
    #[validate(unique_items)]
    val: MyType,
}

let s = TestStruct {
    val: MyType(vec![1, 2, 1]),
};

assert_eq!(
    s.validate().unwrap_err().to_string(),
    json!({
        "errors": [],
        "properties": {
            "val": {
                "errors": ["The items must be unique."]
            }
        }
    })
    .to_string()
);